Graphviz cgraph.h not found

[parthi2929]

Hi

I tried installing pygraphviz with below command and different variations but all in vain

pip install pygraphviz --install-option="--include-path=C:\Program Files (x86)\Graphviz2.38\include\graphviz" --install-option="--library-path=C:\Program Files (x86)\Graphviz2.38\lib" 

Error:

pygraphviz/graphviz_wrap.c(2954): fatal error C1083: Cannot open include file: 'graphviz/cgraph.h': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.13.26128\\bin\\HostX86\\x86\\cl.exe' failed with exit status 2

Kindly help

[SaintNazaire]

Reproduced the error independently.
Clearly c_graph.h header file missing.
@hagberg, @mmarkov do you have copy of it?
Any information as to portability to Python 3.6?

[parthi2929]

The cgraph files is available in the path mentioned.
also note that, installed graphviz is x86 (which is only officially available).

[SaintNazaire]

@parthi2929, sorry bu the cgraph.h file isn't available on my end.
Could you let me know in which folder you found it?
Roger on x86.

[parthi2929]

you could find it here
C:\Program Files (x86)\Graphviz2.38\include\graphviz

[Frackup]

Hi,
Same issue for me. I tried all I could find through the web (and I checked many threads about that problem).
I tried installing pygraphviz through pip (not working, same issue),
python -m pip install --global-option=build_ext --global-option="-IC:\Program Files (x86)\Graphviz2.38\include" --global-option="-LC:\Program Files (x86)\Graphviz2.38\lib\release\lib" pygraphviz

tried donwloading it and installing it (not working).
python setup.py install --include-path="C:\Program Files (x86)\Graphviz2.38\include\graphviz" --library-path="C:\Program Files (x86)\Graphviz2.38\lib\release\lib"

Tried also to modify the files as mentionned here (not working, same issue).

I tried downloading and replacing files in graphviz (not pygraphviz) with a x64 version (not working).

As mentionned by Parthi2929, the file is present in the include folder

This issue is making me slightly mad, please help :).

[tribbloid]

also affects me (except that I'm using Ubuntu 18.04 + virtualenv, with graphviz already installed):

$ pip install pygraphviz
Collecting pygraphviz
  Using cached https://files.pythonhosted.org/packages/7e/b1/d6d849ddaf6f11036f9980d433f383d4c13d1ebcfc3cd09bc845bda7e433/pygraphviz-1.5.zip
Installing collected packages: pygraphviz
  Running setup.py install for pygraphviz ... error
    Complete output from command /home/peng/git/convnet-abstraction/venv/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-_7wwjl1o/pygraphviz/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-xl7438zl/install-record.txt --single-version-externally-managed --compile --install-headers /home/peng/git/convnet-abstraction/venv/include/site/python3.6/pygraphviz:
    running install
    Trying dpkg
    include_dirs=None
    library_dirs=/usr/lib/python3/dist-packages/pygraphviz
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.6
    creating build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/agraph.py -> build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/graphviz.py -> build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/version.py -> build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/__init__.py -> build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/release.py -> build/lib.linux-x86_64-3.6/pygraphviz
    creating build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_unicode.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_drawing.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_node_attributes.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_attribute_defaults.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_setup.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_attributes.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_string.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_graph.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_subgraph.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_clear.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_layout.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_html.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_readwrite.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/__init__.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    copying pygraphviz/tests/test_edge_attributes.py -> build/lib.linux-x86_64-3.6/pygraphviz/tests
    running egg_info
    writing pygraphviz.egg-info/PKG-INFO
    writing dependency_links to pygraphviz.egg-info/dependency_links.txt
    writing top-level names to pygraphviz.egg-info/top_level.txt
    reading manifest file 'pygraphviz.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    warning: no files found matching '*.png' under directory 'doc'
    warning: no files found matching '*.html' under directory 'doc'
    warning: no files found matching '*.txt' under directory 'doc'
    warning: no files found matching '*.css' under directory 'doc'
    warning: no previously-included files matching '*~' found anywhere in distribution
    warning: no previously-included files matching '*.pyc' found anywhere in distribution
    warning: no previously-included files matching '.svn' found anywhere in distribution
    no previously-included directories found matching 'doc/build'
    writing manifest file 'pygraphviz.egg-info/SOURCES.txt'
    copying pygraphviz/graphviz.i -> build/lib.linux-x86_64-3.6/pygraphviz
    copying pygraphviz/graphviz_wrap.c -> build/lib.linux-x86_64-3.6/pygraphviz
    running build_ext
    building 'pygraphviz._graphviz' extension
    creating build/temp.linux-x86_64-3.6
    creating build/temp.linux-x86_64-3.6/pygraphviz
    gcc -pthread -B /home/shared/anaconda3/compiler_compat -Wl,--sysroot=/ -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/home/peng/git/convnet-abstraction/venv/include -I/home/shared/anaconda3/include/python3.6m -c pygraphviz/graphviz_wrap.c -o build/temp.linux-x86_64-3.6/pygraphviz/graphviz_wrap.o
    pygraphviz/graphviz_wrap.c:2987:10: fatal error: graphviz/cgraph.h: No such file or directory
     #include "graphviz/cgraph.h"
              ^~~~~~~~~~~~~~~~~~~
    compilation terminated.
    error: command 'gcc' failed with exit status 1
    
    ----------------------------------------
Command "/home/peng/git/convnet-abstraction/venv/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-_7wwjl1o/pygraphviz/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-xl7438zl/install-record.txt --single-version-externally-managed --compile --install-headers /home/peng/git/convnet-abstraction/venv/include/site/python3.6/pygraphviz" failed with error code 1 in /tmp/pip-install-_7wwjl1o/pygraphviz/

[kitaev-chen]

conda install pygraphviz might be easier

[tan-wei]

The same for me. Clearly, I have told python setup.py install --include-path="C:\Program Files (x86)\Graphviz2.38\include\", however, it still complains that "Cannot open include file: 'graphviz/cgraph.h'".

[tom-rethink]

To install on ubuntu 18.04, I had to also install graphviz-dev: sudo apt install graphviz-dev

[shoeffner]

I had the same problem (MacOS). To resolve it, just copy the files from /include/graphviz to /include/graphviz/graphviz. Should work on all systems like that.

The problem is, that the graphviz directory is searched for a file with the pattern graphviz/cgraph.h, but there is only cgraph.h, so adding an additional directory resolves it.

An alternative solution is to set the -I flag properly (i.e. removing the graphviz there), but I didn't dive into that.

[Khris777]

Same problem here on Windows 10 on anaconda/conda using pip.

After I added C:\Program Files (x86)\Graphviz2.38\include\graphviz into my PATH the installation succeeded in the anaconda root environment, but I can't get it to install into another conda virtual environment, it always throws the same error that it can't find its includes. When I echo the PATH variable inside of the activated environment everything is there and it should be able to locate the files.

I also added C:\Program Files (x86)\Graphviz2.38\include into my PATH as well to no avail.

And pygraphviz is not on conda, at least not in the common channels.

[willismonroe]

Ubuntu 19.04 here, had to run:
sudo apt install libgraphviz-dev

[rastaxe]

I had to install also python3.7-dev

[litchfield]

Quick fix for Mac OSX + homebrew graphviz --

pip install --install-option="--include-path=/usr/local/include/" --install-option="--library-path=/usr/local/lib/" pygraphviz

[ubiq-x]

This has worked for me on a MacOS Catalina with HomeBrew 2.2.5:

pip install pygraphviz --install-option="--include-path=/usr/local/Cellar/graphviz/2.42.2/include" --install-option="--library-path=/usr/local/Cellar/graphviz/2.42.2/lib"